November 1, 1989 Earthquake: Mona Passage, Puerto Rico, US Territories
A magnitude 4.4 earthquake struck Mona Passage, Puerto Rico, US Territories on November 1, 1989 at 10:25:52 UTC, 26 km below the surface. It caused a tsunami.
Map
Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.
The earthquake
- Date
- November 1, 1989
- Time
- 10:25:52 UTC
- Place
- Mona Passage, Puerto Rico, US Territories
- Magnitude
- 4.4 (Ms)
- Focal depth
- 26 km (16 mi)
- Tsunami
- Yes: the tsunami it caused
- Epicenter
- 18.986° N, 68.833° W
- Country
- US Territories
The toll
The record gives no deaths, injuries or damage for this earthquake.
What the record says
NCEI’s account, from the sources it cites.
1989, November 1, 10:25:52.2 UTC. 18.986 N, 68.833 W, depth 26 km, magnitude 5.2 mb, 4.4 MS. Felt at Aguadilla, Mayaguez, Cabo Rojo, Guanico and Ponce and as far east as Cayey and San Juan. Possible small tsunami reported near Cabo Rojo. (reference #1053)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- August 4, 1946, Northeastern Coast, Dominican Republic
- October 11, 1918, Mona Passage, Puerto Rico, US Territories
- August 8, 1946, Northeastern Coast, Dominican Republic
- May 9, 1673, Santo Domingo, Dominican Republic
- June 24, 1984, Santo Domingo, Dominican Republic
- April 24, 1916, Santo Dominigo, Dominican Republic
- 1502, Santo Domingo, Dominican Republic
- November 12, 1918, Puerto Rico, US Territories
- December 29, 1897, Santo Domingo, Dominican Republic
- June 11, 1971, Santo Domingo, Dominican Republic
- April 20, 1564, Concepcion DE LA Vega, Dominican Republic
- January 30, 1776, W, Puerto Rico, Dominican Republic
- September 8, 1615, Santo Domingo, Puerto Rico, Dominican Republic
- November 3, 1988, Catano, Mona Passage, Puerto Rico, US Territories
- 1783, Santiago DE Los Caballeros, Dominican Republic
More
Significant earthquakes of 1989The 1900sEvery quake the USGS located in 1989Recent earthquakes near hereThis day in weather history
Sources
Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI earthquake 6620.